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Finding the Fourth Proportional to 108,694.70, 163,042.05 and 73,265.30

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Solution

The fourth proportional to 108,694.70, 163,042.05 and 73,265.30 is: 109,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,694.70 : 163,042.05 = 73,265.30 : x
  2. Step 2: Convert to fraction form
    108,694.70/163,042.05 = 73,265.30/x
  3. Step 3: Cross multiply
    108,694.70x = 163,042.05 × 73,265.30
  4. Step 4: Simplify right side
    108,694.70x = 11,945,324,705.87
  5. Step 5: Solve for x
    x = 11,945,324,705.87/108,694.70
  6. Step 6: Final answer
    x = 109,897.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.